- Date
- September 25, 1985, 13:33 local (21:33 UTC)
- Place
- Unalaska, AK
- Injuries
- 1 minor, 20 uninjured
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N674MABoeing 737-2X6C
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- Safety recommendations
- Yes
- FAA report
- 19850925054459A
- Case key
- 4582
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
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Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
Acft was dispatched to rstrctd arpt with a 3900' rwy & notamed: 3' stndg wtr on north end of rwy. SIGMET was in effect for mod to svr turbc blo 10,000' due to strong low lvl wnd & assoc wndshear. Capt made a shallow ovrwtr apch to rwy 12, which had a nr vert 70' bluff skirting its l edge, aprx 106' fm rwy centerline. On final apch, capt noted variable wnd conds & sudden 15 kt increase in IAS due to wndshear. He contd apch, but acft settled & touched dwn 72' short of rwy. L main gear hit a log (washed onto shore) & large rock, then collapsed after acft bounced & lndd on rwy. Unpredictable wnds & dwndfts were rprtdly prevalent at this arpt. Official 1349 adt wnd was fm 160 deg at 8 KTS, but at apch end of rwy, wnd was rprtd coming ovr bluff & was gusty. FAA had granted markair exemption to opr at Unalaska w/o ovrrun/safety areas. No VASI at apch end of rwy 12. Owner (state of Alaska) delayed improvements due to funding prblms. Capt's 10th lndg at Unalaska; had no sunglasses; blinded by sunglare off wtr. Reqd dry lndg field length was computed to be 3700'.
Aircraft
- Registration
- N674MA
- Reported as
- Boeing 737-2X6C
- Category
- Airplane
- Serial number
- 23292
- Airframe hours
- 614
- Engine
- P&W JT8D-17A, 16,000 lbs thrust, turbo fan
- Damage
- Substantial damage
- Flight
- Part 121
- Registered owner
- Markair, Inc.
- Airworthiness certificate
- Standard, Transport
- Last inspection
- AAIP · September 18, 1985 · 59 hours before
- Departed
- ANC · Anchorage, AK
- Flight plan
- IFR
- Airport
- DUT · Unalaska, runway 12, 3,900 × 100 ft, gravel
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 41
- Certificates
- Airline transport, Commercial
- Airplane ratings
- Single-engine land, Single-engine sea, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 14,969 total · 1,173 in this make and model · 11,269 as pilot in command · 206 in the last 90 days · 71 in the last 30 days · 4 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Variable at 8 knots
- Visibility
- 20 statute miles
- Lowest ceiling
- 3,000 ft broken
- Temperature
- 55 °F, dew point 48 °F
- Altimeter
- 29.00 inHg
- Observed at
- DUT
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.